ES2371314B2 - METHOD FOR THE IMPLEMENTATION OF AN ELECTRIC ROTOR IN EXISTING MACHINES OF VERY LOW SPEED BY INSTALLING AN ADDITIONAL CROWN MULTI-PAPER. - Google Patents
METHOD FOR THE IMPLEMENTATION OF AN ELECTRIC ROTOR IN EXISTING MACHINES OF VERY LOW SPEED BY INSTALLING AN ADDITIONAL CROWN MULTI-PAPER. Download PDFInfo
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- ES2371314B2 ES2371314B2 ES201101071A ES201101071A ES2371314B2 ES 2371314 B2 ES2371314 B2 ES 2371314B2 ES 201101071 A ES201101071 A ES 201101071A ES 201101071 A ES201101071 A ES 201101071A ES 2371314 B2 ES2371314 B2 ES 2371314B2
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000696 magnetic material Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 241000555745 Sciuridae Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 3
- 230000004907 flux Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101001126084 Homo sapiens Piwi-like protein 2 Proteins 0.000 description 1
- 102100029365 Piwi-like protein 2 Human genes 0.000 description 1
- GYMWQLRSSDFGEQ-ADRAWKNSSA-N [(3e,8r,9s,10r,13s,14s,17r)-13-ethyl-17-ethynyl-3-hydroxyimino-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate;(8r,9s,13s,14s,17r)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6h-cyclopenta[a]phenanthrene-3,17-diol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1.O/N=C/1CC[C@@H]2[C@H]3CC[C@](CC)([C@](CC4)(OC(C)=O)C#C)[C@@H]4[C@@H]3CCC2=C\1 GYMWQLRSSDFGEQ-ADRAWKNSSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Método para la implementación de un rotor eléctrico en máquinas existentes de muy baja velocidad instalando una corona adicional multicapa.#La presente invención permite la instalación de un rotor eléctrico en la máquina accionada existente, preferentemente un molino de bolas, con el fin de realizar el accionamiento directo con la consecuente mejora del rendimiento sin que haya riesgo de que las bolas del molino se peguen en el mismo debido a los campos magnéticos.#Esto se consigue mediante una corona adicional multicapa donde la capa o capas más cercanas al tambor son de material magnético y la capa o capas exteriores son de material magnético con el fin de que pueda circular el flujo magnético de la máquina.Method for the implementation of an electric rotor in very low speed existing machines by installing an additional multilayer crown. # The present invention allows the installation of an electric rotor in the existing driven machine, preferably a ball mill, in order to perform the Direct drive with the consequent improvement in performance without any risk of the mill balls sticking in it due to magnetic fields. # This is achieved by an additional multilayer crown where the layer or layers closest to the drum are made of material Magnetic and the outer layer or layers are made of magnetic material so that the magnetic flux of the machine can circulate.
Description
Método para la implementación de un rotor eléctrico en máquinas existentes de muy baja velocidad instalando una corona adicional multicapa. Method for the implementation of an electric rotor in existing machines of very low speed by installing an additional multilayer crown.
Objeto de la invención Object of the invention
La presente invención es de aplicación en sistemas electromecánicos en los que intervienen máquinas de muy baja velocidad accionados mediante un conjunto motor eléctrico (5), una reductora (4) y una corona (2), o bien, mediante motores (5) que alimentan directamente a una corona (2) adosada a la máquina, como son los molinos de minerales. Estas máquinas constan principalmente de un tambor en el cual se introducen unas bolas de acero. Al producirse el movimiento rotativo del tambor dichas bolas se desplazan y caen sobre el mineral produciéndose la molienda. The present invention is applicable in electromechanical systems in which very low speed machines are operated driven by an electric motor assembly (5), a reducer (4) and a crown (2), or by motors (5) that feed directly to a crown (2) attached to the machine, such as mineral mills. These machines consist mainly of a drum in which steel balls are introduced. When the rotary movement of the drum takes place, said balls move and fall on the ore, grinding.
Los accionamientos de este tipo de máquinas tienen un rendimiento bajo y alto mantenimiento. Una posible solución para mejorar el rendimiento sería instalar un rotor eléctrico en el tambor de forma que se realice el accionamiento directo. El problema que se puede presentar es que los campos magnéticos generados por el rotor atraigan las bolas del molino y no se produzca la molienda. The drives of this type of machines have low performance and high maintenance. A possible solution to improve performance would be to install an electric rotor in the drum so that direct drive is performed. The problem that may arise is that the magnetic fields generated by the rotor attract the balls of the mill and grinding does not occur.
La presente invención propone un nuevo método para la instalación de un rotor eléctrico en la máquina accionada existente, con el fin de realizar el accionamiento directo con la consecuente mejora del rendimiento sin que haya riesgo de que las bolas del molino se peguen en el mismo debido a los campos magnéticos. The present invention proposes a new method for the installation of an electric rotor in the existing driven machine, in order to perform the direct drive with the consequent improvement in performance without any risk of the mill balls sticking in it to the magnetic fields.
Antecedentes de la invención Background of the invention
Tradicionalmente, en los sistemas de accionamiento de máquinas de muy baja velocidad se emplean máquinas eléctricas con una velocidad de giro muy superior que necesitan reductoras que atacan a una corona solidaria con la máquina accionada. Este método de transmisión, al tener piezas móviles que rozan entre sí, supone una pérdida muy importante de energía así como un elevado mantenimiento. Traditionally, in very low speed machine drive systems, electric machines with a much higher speed of rotation are needed, which need reducers that attack a crown with the machine driven. This method of transmission, having moving parts that rub against each other, means a very important loss of energy as well as high maintenance.
Además, conviene tener en cuenta una serie de patentes relacionadas con la invención: In addition, a series of patents related to the invention should be taken into account:
La patente internacional de invención ES2164998T3/WO974004822, titulada: “Molino de bolas”, que describe un molino de bolas para la molienda de minerales. The international invention patent ES2164998T3 / WO974004822, entitled: "Ball mill", which describes a ball mill for mineral grinding.
La patente internacional de invención ES2119374T3/WO0737108, titulada: “Molino tubular para moler materias primas naturales y sintéticas, en particular para la industria del cemento”, que describe un molino para el procesado de cemento. The international invention patent ES2119374T3 / WO0737108, entitled: "Tubular mill for grinding natural and synthetic raw materials, in particular for the cement industry", which describes a mill for cement processing.
La patente internacional DE102006020149-A1 titulada “Synchronous salient pole machine e.g. ring motor, for use in ball mili, has yoke with yoke section arranged between two salient poles, where yoke section has radial air passage that radially separates air portion” que habla de la utilización de una máquina síncrona en el accionamiento de molinos de bolas. International patent DE102006020149-A1 entitled "Synchronous salient pole machine e.g. ring motor, for use in ball mili, has yoke with yoke section arranged between two salient poles, where yoke section has radial air passage that radially separates air portion ”that talks about the use of a synchronous machine in the operation of ball mills.
Descripción de la invención Description of the invention
La presente invención permite eliminar las distintas transmisiones presentes en el actual estado de la técnica, por lo que mediante la presente invención se logra aumentar de manera significativa el rendimiento total del accionamiento de la máquina, así como reducir el mantenimiento evitando el riesgo de que los campos magnéticos atraigan a las bolas del molino y éste no funcione correctamente. The present invention makes it possible to eliminate the different transmissions present in the current state of the art, whereby by means of the present invention it is possible to significantly increase the total performance of the machine drive, as well as reduce maintenance avoiding the risk of Magnetic fields attract the balls of the mill and it does not work properly.
Con la presente invención se mantendrán las ventajas de eliminar la reductora (4), de manera que se actúa directamente sobre el tambor del molino. La invención se basa en hacer que la máquina a accionar sea parte del motor eléctrico, es decir, instalar un motor eléctrico que tenga su rotor ubicado en el tambor del molino, instalando para ello una corona multicapa cuya superficie exterior sea adecuada para la instalación de un rotor eléctrico, y evite el riesgo de atracción de las bolas del molino gracias a la utilización de materiales amagnéticos en la capa más próxima al tambor. La corona multicapa tendrá al menos dos capas concéntricas donde la capa interior, o capas interiores, serán de material amagnético y la capa exterior, o capas exteriores, de material magnético permitiendo la ubicación de imanes permanentes, polos bobinados o un devanado en forma de jaula de ardilla, para formar el rotor de una máquina eléctrica solidaria con el tambor del molino para su accionamiento directo de forma que las fuerzas magnéticas en el interior del tambor sean prácticamente nulas. With the present invention the advantages of eliminating the reducer (4) will be maintained, so that it acts directly on the mill drum. The invention is based on making the machine to be part of the electric motor, that is, installing an electric motor having its rotor located in the drum of the mill, installing for this a multilayer crown whose outer surface is suitable for the installation of an electric rotor, and avoid the risk of attraction of the mill balls thanks to the use of non-magnetic materials in the layer closest to the drum. The multilayer crown will have at least two concentric layers where the inner layer, or inner layers, will be of non-magnetic material and the outer layer, or outer layers, of magnetic material allowing the location of permanent magnets, winding poles or a cage-shaped winding of squirrel, to form the rotor of an electric machine in solidarity with the drum of the mill for direct operation so that the magnetic forces inside the drum are practically nil.
Finalmente se instalará un estator eléctrico convencional concéntrico al rotor eléctrico y en consecuencia al molino de bolas. Finally, a conventional electric stator will be installed concentric to the electric rotor and consequently to the ball mill.
El objeto de la patente es reivindicar el método por el cual se elimina el sistema de transmisión tradicional y se implementa un motor eléctrico en la máquina existente instalando una corona adicional a la existente. Se instala una corona adicional para colocar los imanes puesto que el aprovechamiento de la existente encarece el proceso y es bastante más complejo técnicamente. The object of the patent is to claim the method by which the traditional transmission system is eliminated and an electric motor is implemented in the existing machine by installing an additional crown to the existing one. An additional crown is installed to place the magnets since the use of the existing one makes the process more expensive and is much more technically complex.
Breve descripción de las figuras Brief description of the fi gures
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description, where illustrative and non-limiting nature has been represented. next:
Figura 1: Muestra la solución convencional del accionamiento de una máquina de muy baja velocidad como son los molinos de bolas para la molienda de minerales, donde, Figure 1: It shows the conventional solution of the drive of a very low speed machine such as ball mills for mineral grinding, where,
- (1) (one)
- Molino de bolas. Ball mill.
- (2) (2)
- Corona dentada. Toothed crown
- (3) (3)
- Piñón. Pinion.
- (4) (4)
- Reductora (con una o varias etapas). Reducer (with one or several stages).
- (5) (5)
- Motor eléctrico de alta velocidad. High speed electric motor
- (6) (6)
- Cojinetes sobre los que gira el tambor. Bearings on which the drum rotates.
Figura 2: Muestra la realización preferente mediante un detalle de la corona adicional y la ya instalada. La corona adicional tiene una parte amagnética pegada sobre el tambor y una parte magnética con una superficie adecuada para la instalación de los imanes con tantas superficies planas como imanes, y con la posibilidad de circulación del campo magnético, donde, Figure 2: Shows the preferred embodiment by means of a detail of the additional crown and the one already installed. The additional crown has a magnetic part attached to the drum and a magnetic part with a surface suitable for the installation of magnets with as many flat surfaces as magnets, and with the possibility of circulation of the magnetic field, where,
- (1) (one)
- Molino de bolas. Ball mill.
- (7) (7)
- Parte amagnética de la corona nueva a instalar. Non-magnetic part of the new crown to be installed.
- (8) (8)
- Parte magnética de la corona nueva a instalar. Magnetic part of the new crown to be installed.
- (9) (9)
- Imanes permanentes encargados de crear el campo magnético en el rotor. Permanent magnets responsible for creating the magnetic field in the rotor.
Figura 3: Muestra la solución adoptada finalmente, en la que el rotor se integra como parte del molino (máquina accionada) y en la que se eliminan todos los sistemas de transmisión, donde, Figure 3: Shows the solution finally adopted, in which the rotor is integrated as part of the mill (driven machine) and in which all transmission systems are eliminated, where,
- (1) (one)
- Molino de bolas. Ball mill.
- (6) (6)
- Cojinetes sobre los que gira el tambor. Bearings on which the drum rotates.
- (7) (7)
- Parte amagnética de la corona nueva a instalar. Non-magnetic part of the new crown to be installed.
- (8) (8)
- Parte magnética de la corona nueva a instalar. Magnetic part of the new crown to be installed.
- (9) (9)
- Imanes permanentes encargados de crear el campo magnético en el rotor. Permanent magnets responsible for creating the magnetic field in the rotor.
- (10) (10)
- Estator de la máquina eléctrica de accionamiento directo. Stator of the direct drive electric machine.
Realización preferente de la invención Preferred Embodiment of the Invention
A continuación se describe un modo de realización preferente de la invención, aplicado al caso particular de que el molino de bolas esté accionado originalmente mediante una corona dentada (2). A preferred embodiment of the invention is described below, applied to the particular case that the ball mill is originally operated by a toothed crown (2).
Para ello se instalará una nueva corona multicapa de manera que se obtenga una superficie apropiada para la instalación de los imanes permanentes encargados de generar el campo rotórico sin que exista riesgo de atracción magnética entre los imanes y las bolas de acero del molino. For this, a new multilayer crown will be installed so that an appropriate surface is obtained for the installation of the permanent magnets responsible for generating the rotary field without the risk of magnetic attraction between the magnets and the steel balls of the mill.
Para la fabricación de la primera capa, parte amagnética, de la corona multicapa, se colocan una o varias piezas de forma que se consiga una corona con una superficie circular concéntrica al tambor. La segunda capa, parte magnética, tendrá una superficie interior complementaria a la primera capa y una exterior adecuada para la instalación de los imanes. For the manufacture of the first layer, non-magnetic part, of the multilayer crown, one or several pieces are placed so that a crown with a circular surface concentric to the drum is obtained. The second layer, magnetic part, will have an inner surface complementary to the first layer and an outer surface suitable for the installation of the magnets.
Claims (2)
- Categoría Category
- Documentos citados Reivindicaciones afectadas Documents cited Claims Affected
- A TO
- US 2010033035 A1 (HOESLE MARKUS) 11.02.2010, Párrafos 1 US 2010033035 A1 (HOESLE MARKUS) 11.02.2010, Paragraphs one
- [0026]-[0041], [0066]-[0081]; figures 1,2,5,6,12-18 [0026] - [0041], [0066] - [0081]; figures 1,2,5,6,12-18
- A TO
- US 3272444 A (GEN ELECTRIC) 13.09.1966, Columna 1 US 3272444 A (GEN ELECTRIC) 13.09.1966, Column one
- 3, línea 9-línea 65, figura 1 3, line 9-line 65, figure 1
- A TO
- US 3903439 A (SMIDTH & CO AS F L) 02.09.1975, Columna 1 US 3903439 A (SMIDTH & CO AS F L) 02.09.1975, Column one
- 3, líneas 15-68; figures 2 y 3. 3, lines 15-68; Figures 2 and 3.
- A TO
- US 2003094524 A (GEN ELECTRIC CANADA) 22.05.2003, 1 US 2003094524 A (GEN ELECTRIC CANADA) 05.22.2003, one
- Resumen; figura 1; párrafos [0010]-[0012] Summary; Figure 1; paragraphs [0010] - [0012]
- A TO
- US 5975310 A (DARLING RICHARD S ET AL) 02.11.1999, 1 US 5975310 A (DARLING RICHARD S ET AL) 02.11.1999, one
- Columna 5, línea 30-columna 6, línea 18 Column 5, line 30-column 6, line 18
- Categoría de los documentos citados X: de particular relevancia Y: de particular relevancia combinado con otro/s de la misma categoría A: refleja el estado de la técnica O: referido a divulgación no escrita P: publicado entre la fecha de prioridad y la de presentación de la solicitud E: documento anterior, pero publicado después de la fecha de presentación de la solicitud Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application
- El presente informe ha sido realizado • para todas las reivindicaciones • para las reivindicaciones nº: This report has been prepared • for all claims • for claims no:
- Fecha de realización del informe 01.12.2011 Date of realization of the report 01.12.2011
- Examinador L. J. García Aparicio Página 1/4 Examiner L. J. García Aparicio Page 1/4
- Novedad (Art. 6.1 LP 11/1986) Novelty (Art. 6.1 LP 11/1986)
- Reivindicaciones Reivindicaciones 1 SI NO Claims Claims one IF NOT
- Actividad inventiva (Art. 8.1 LP11/1986) Inventive activity (Art. 8.1 LP11 / 1986)
- Reivindicaciones Reivindicaciones 1 SI NO Claims Claims one IF NOT
- Documento Document
- Número Publicación o Identificación Fecha Publicación Publication or Identification Number publication date
- D01 D01
- US 2010033035 A1 (HOESLE MARKUS) 11.02.2010 US 2010033035 A1 (HOESLE MARKUS) 11.02.2010
- D02 D02
- US 3272444 A (GEN ELECTRIC) 13.09.1966 US 3272444 A (GEN ELECTRIC) 13.09.1966
- D03 D03
- US 3903439 A (SMIDTH & CO AS F L) 02.09.1975 US 3903439 A (SMIDTH & CO AS F L) 02.09.1975
- D04 D04
- US 2003094524 A (GEN ELECTRIC CANADA) 22.05.2003 US 2003094524 A (GEN ELECTRIC CANADA) 05/22/2003
- D05 D05
- US 5975310 A (DARLING RICHARD S et al) 02.11.1999 US 5975310 A (DARLING RICHARD S et al) 02.11.1999
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201101071A ES2371314B2 (en) | 2011-10-03 | 2011-10-03 | METHOD FOR THE IMPLEMENTATION OF AN ELECTRIC ROTOR IN EXISTING MACHINES OF VERY LOW SPEED BY INSTALLING AN ADDITIONAL CROWN MULTI-PAPER. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201101071A ES2371314B2 (en) | 2011-10-03 | 2011-10-03 | METHOD FOR THE IMPLEMENTATION OF AN ELECTRIC ROTOR IN EXISTING MACHINES OF VERY LOW SPEED BY INSTALLING AN ADDITIONAL CROWN MULTI-PAPER. |
Publications (2)
Publication Number | Publication Date |
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ES2371314A1 ES2371314A1 (en) | 2011-12-29 |
ES2371314B2 true ES2371314B2 (en) | 2012-05-31 |
Family
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ES201101071A Active ES2371314B2 (en) | 2011-10-03 | 2011-10-03 | METHOD FOR THE IMPLEMENTATION OF AN ELECTRIC ROTOR IN EXISTING MACHINES OF VERY LOW SPEED BY INSTALLING AN ADDITIONAL CROWN MULTI-PAPER. |
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3272444A (en) * | 1963-08-28 | 1966-09-13 | Gen Electric | Gearless rotary mill |
GB1381583A (en) * | 1973-04-06 | 1975-01-22 | Smidth & Co As F L | Rotary drums |
US5975310A (en) * | 1997-01-17 | 1999-11-02 | Darling; Richard S. | Method and apparatus for ball separation |
US6719227B2 (en) * | 2001-11-16 | 2004-04-13 | General Electric Canada Inc. | Grinding mill and methods for fabricating same |
DE102007005131B3 (en) * | 2007-02-01 | 2008-01-31 | Siemens Ag | Ring motor as direct drive, particularly for ore mills or tube mills, comprises stator and rotor formed as rotary mill body, where stator has two different excitation systems and mill body has toothed structure |
-
2011
- 2011-10-03 ES ES201101071A patent/ES2371314B2/en active Active
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ES2371314A1 (en) | 2011-12-29 |
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